Which insect is known for producing honeydew as a byproduct?

Which insect is known for producing honeydew as a byproduct?

• A. Scale insects
• B. Aphids
• C. Whiteflies
• D. Caterpillars

Answer: (A)

When insects feed on plant sap, they often excrete a sugary waste product called honeydew. Scale insects feed by inserting their mouthparts into the plant and drawing phloem sap; as they digest this sugar-rich liquid, they release honeydew. This byproduct can accumulate on the plant surface, attract ants, and promote the growth of sooty mold, signaling a scale infestation on turf. Caterpillars chew leaves and don’t produce honeydew, which is why they aren’t associated with this symptom. Aphids and whiteflies also generate honeydew, but scale insects are a classic source of this sugary excretion on plants, making them the best answer in this context.

When insects feed on plant sap, they often excrete a sugary waste product called honeydew. Scale insects feed by inserting their mouthparts into the plant and drawing phloem sap; as they digest this sugar-rich liquid, they release honeydew. This byproduct can accumulate on the plant surface, attract ants, and promote the growth of sooty mold, signaling a scale infestation on turf. Caterpillars chew leaves and don’t produce honeydew, which is why they aren’t associated with this symptom. Aphids and whiteflies also generate honeydew, but scale insects are a classic source of this sugary excretion on plants, making them the best answer in this context.